Book bag



FIG. 1 is a front perspective view of the book bag of the present invention.

FIG. 2 is a front elevational view of the book bag.

FIG. 3 is a rear elevational view of the book bag.

FIG. 4 is a right side elevational view of the book bag.

FIG. 5 is a top plan view of the book bag.

FIG. 6 is a bottom plan view of the book bag.

FIG. 7 is a front perspective view of the book bag showing the right side of the book bag in the open position; and,

FIG. 8 is a rear perspective view of the book bag showing the top of the book bag in the open position.

The broken line portions of the disclosure are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a book bag, as shown and described. 